Nova 1200W HB R5W

What It Is

The Flexstar Nova 1200W HB R5W is a linear high-bay LED toplight purpose-built for commercial indoor cultivation and greenhouse supplemental lighting. The 'HB' designation marks the high-bay configuration — designed for rooms with elevated hang points where a 1,000W double-ended HPS would typically be spec'd. The 'R5W' designates an independently controlled far-red channel using dedicated far-red diodes, letting you dial in end-of-day far-red exposure or shade-avoidance signaling without a secondary fixture.

Output is 3,360 µmol/s PPF at 1,200W draw across a 120–277V universal input range, so it installs on standard 120V single-phase or 277V commercial circuits without a separate transformer. The fixture runs on Flexstar's Liquid Optics system — polycarbonate lenses over each diode array that shape and direct photons into the canopy rather than losing them as scatter. Flexstar rates the efficacy at 2.8 µmol/J for the full fixture output, including the far-red channel in its operating state.

Who It's For

This fixture is the right spec for licensed cannabis and hemp operators replacing aging 1,000W HPS infrastructure in rooms with ceiling heights that benefit from a high-bay mount — typically facilities where HPS was hung at 5 feet or more above canopy. The high-bay form factor and Liquid Optics lens system mean the Nova can cover its footprint efficiently even at greater hang distances, reducing the fixture count needed per zone versus a conventional LED bar light at equivalent power.

The R5W far-red channel is specifically relevant for flowering-room applications where operators are running end-of-day far-red protocols to accelerate phytochrome reversion, or for vegetable and ornamental greenhouse operators managing photoperiod response. Because the far-red channel is independent, you're not committing your entire spectrum budget to it — the main full-spectrum output runs separately and the far-red is additive and controllable.

The IP66 waterproof rating makes this fixture suitable for rooms that run wash-down protocols or high-humidity environments. Facility managers spec'ing for a space where moisture ingress is a real maintenance concern will find the sealed rating meaningful versus open-frame LEDs.

Key Features

The Liquid Optics polycarbonate lens system shapes each diode's output into a defined beam pattern, reducing light spill at the walls and perimeter — meaning you can hang the fixture closer to side walls or aisle pathways without wasting photons. Flexstar's adjustable light distribution allows operators to select a lens angle suited to their room geometry and hang height, directing coverage where the canopy actually is.

The housing is built around a modular thermal convective design — no active fans, no moving parts. Heat is managed passively through the aluminum chassis, and Flexstar rates the fixture to operate in ambient environments up to 40°C. The compact 3.2" profile keeps the fixture low-profile on the rail and minimizes shadow footprint on the canopy below.

Controllability is a meaningful operational spec: the Nova system supports simultaneous control of up to 160 fixtures from a single controller, which matters for large commercial rooms where fixture-by-fixture management isn't practical. The 5-year manufacturer warranty covers the fixture against defects, and the 50,000+ hour LED lifespan means the diode arrays will outlast multiple facility lease cycles.

How It Fits a Commercial Build

For operators doing a direct HPS-to-LED conversion, the Nova 1200W HB slots in at 1:1 on fixture count — one Nova per position where a 1,000W HPS ran. Because it draws the same 1,200W from the panel (versus 1,050W for the HPS lamp plus 150–200W of ballast draw), the actual load per circuit typically drops. That's a real number to run with your electrical contractor when re-evaluating circuit capacity for a retro-fit build.

The universal 120–277V input range means the fixture connects directly to whatever panel voltage your facility runs — no step-down transformer, no additional balance calculations for three-phase distribution in the lighting circuit. The modular far-red channel also means the Nova is controller-ready: if you're running an environmental controller with 0–10V dimming outputs, the Nova integrates into that system without an additional interface box.

For new builds with high ceilings and a tall-canopy crop profile — cannabis flower rooms with 12'+ ceilings, tall vegetable greenhouse bays, or ornamental production houses — the HB form factor paired with the Liquid Optics lens selection gives the specifier the ability to tune the beam angle to the hang height, maintaining target PPFD at canopy without over-driving fixtures closer to the plants.